Acetonitrile--water (1/1) → HCID 72195160, compound

Participants

Reaction Steps

To a solution of (S)-2-tert-butoxy-2-(7-(4-chlorophenyl)-5-methyl-2-(1-methyl-1H-pyrazolo[3,4-b]pyridin-5-yl)benzo[d]thiazol-6-yl)ethanol from previous reaction (assume 0.024 mmol) in 25% water/acetonitrile (0.70 mL) was added sequentially, a stock solution of CrO3/H5IO6 (296 μL, 0.439 M solution) and CrO3 (3 mg, 0.030 mmol) at room temperature. The reaction was stirred for 1 h, diluted with acetonitrile, filtered and purified by reverse phase HPLC. Fractions containing product were pooled and evaporated to the desired product. LCMS-ESI+: calc'd for C27H26ClN4O3S: 521.1 (M+H+); 521.2 (M+H+); 1H NMR (400 MHz, CD3OD): δ 9.26 (d, J=1.9 Hz, 1H), 8.79 (d, J=1.9 Hz, 1H), 8.20 (s, 1H), 7.87 (s, 1H), 7.69 (d, J=9.4 Hz, 1H), 7.61-7.59 (m, 3H), 5.26 (s, 1H), 4.15 (s, 3H), 2.61 (s, 3H), 0.97 (s, 9H).

Provenance & Evidence